3 Graphs

Geometry Level 2

3 graphs were plotted on an infinite XY graph. The formulas of the graphs are shown below:

1: x x + y y = x y xy

2: x x - y y = x 2 x^2

3: x x - y y = y 2 y^2

Obviously, all the 3 graphs meet at the origin. But for 2 of these graphs, they do not meet each other at a point on the infinite XY graph, other than the origin.

So which of the 3 graphs meet the other 2 graphs at a point on the infinite XY graph, other than the origin?

3 1 2

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